/*
Copyright 2008 - 2013 Brightworks, Inc.

This file is part of Language Mentor.

Language Mentor is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

Language Mentor is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with Language Mentor.  If not, see <http://www.gnu.org/licenses/>.
*/
package com.brightworks.service
{
    import com.brightworks.util.Log;

    import mx.rpc.IResponder;

    public class BwAsyncResponder implements IResponder
    {
        private var resultHandler:Function;
        private var faultHandler:Function;
        private var handlerArgs:Array;

        public function BwAsyncResponder(resultHandler:Function, faultHandler:Function = null, handlerArgs:Array = null)
        {
            this.resultHandler = resultHandler;
            this.faultHandler = faultHandler;
            this.handlerArgs = handlerArgs;
        }

        public function result(data:Object):void
        {
            if (!(handlerArgs))
            {
                resultHandler(data);
            }
            else
            {
                resultHandler.apply(null, [data].concat(handlerArgs));
            }
        }

        public function fault(info:Object):void
        {
            if (faultHandler != null)
            {
                if (handlerArgs == null)
                {
                    faultHandler(info);
                }
                else
                {
                    try
                    {
                        faultHandler(info);
                    }
                    catch (e:Error)
                    {
                        faultHandler.apply(null, [info].concat(handlerArgs));
                    }
                }
            }
            else
            {
                Log.warn(["BwAsyncResponder.fault(): No faultHandler", info]);
            }
        }
    }
}
